International Emergency Economic Powers Act
A U.S. law that grants the president authority to regulate international commerce during national emergencies. It has implications for sanctions and trade law.
Updated April 23, 2026
How It Works
The International Emergency Economic Powers Act (IEEPA) allows the President of the United States to regulate international commerce after declaring a national emergency in response to any unusual and extraordinary threat originating outside the U.S. This authority enables the President to impose sanctions, freeze assets, and restrict trade with foreign entities or countries that pose a threat to national security, foreign policy, or the economy. The act requires that the President notify Congress of the declaration, and the powers granted last for one year unless renewed.
Why It Matters
IEEPA is a crucial tool in U.S. foreign policy and national security strategy. It provides a legal framework for economic sanctions, which are often used as a non-military means to influence foreign governments, curb terrorism, prevent the proliferation of weapons, or respond to human rights abuses. By controlling trade and financial transactions, the U.S. can exert pressure without engaging in armed conflict, making IEEPA a versatile instrument in international diplomacy.
IEEPA vs Trading with the Enemy Act (TWEA)
While both IEEPA and the Trading with the Enemy Act grant the President authority to regulate commerce, they differ in scope and application. TWEA is primarily used during declared wars and focuses on enemies of the United States, whereas IEEPA applies during national emergencies and can target a broader range of foreign threats beyond wartime enemies. IEEPA also allows more flexible and ongoing economic sanctions in peacetime emergencies.
Real-World Examples
One notable use of IEEPA was during the 1979 Iran hostage crisis, when President Jimmy Carter froze Iranian assets in the U.S. to exert economic pressure. More recently, IEEPA has been the basis for sanctions against countries like North Korea, Russia, and Venezuela, as well as actions against terrorist organizations and cyber threats.
Common Misconceptions
A common misconception is that IEEPA allows the President unlimited power to regulate foreign commerce. In reality, the act requires a formal national emergency declaration and is subject to Congressional oversight. Additionally, IEEPA does not override other laws or treaties and must be exercised within constitutional limits.
Example
During the 1979 Iran hostage crisis, President Carter used IEEPA to freeze Iranian assets in the United States as a form of economic pressure.